Power column



FIG. 1 is a three-quarter perspective view of a power column in accordance with a first embodiment of our Design;

FIG. 2 is an elevational view from the right in FIG. 1; the opposite face of the column itself is the same as in FIG. 2;

FIG. 3 is an elevational view from the left in FIG. 1; the elevational view from the right is a mirror image;

FIG. 4 is a top plan view;

FIG. 5 is a bottom plan view;

FIG. 6 is a three-quarter perspective view of a power column in accordance with a second embodiment of our Design;

FIG. 7 is an elevational view from the right in FIG. 6; the view from the left is the same as FIG. 7;

FIG. 8 is an elevational view from the left in FIG. 6; the elevational view from the right is the same;

FIG. 9 is a top plan view; and,

FIG. 10 is a bottom plan view.

The claimed design is shown broken away to indicate indefinite length. 

The ornamental Design for a power column, as shown and described. 